Power generation system

Abstract

The power generation system includes at least one combustion engine. The power generation system further includes a power generation arrangement that is constructed and arranged to generate electricity from waste energy from the at least one combustion engine. The power generation arrangement includes an electro-turbo compounding engine; a high temperature turbine engine; and a low temperature turbine engine.

1 . A power generation system comprising:
 at least one combustion engine comprising a power generation arrangement, the power generation arrangement constructed and arranged to generate electricity from waste energy from the at least one combustion engine; the power generation arrangement comprising an electro-turbo compounding engine, a high temperature turbine engine, and a low temperature turbine engine; and   an emissions unit for handling emissions from the system, the emissions unit comprising a carbon capture unit.   
     
     
         2 . The power generation system according to  claim 1 , wherein each of the electro-turbo compounding engine; the high temperature turbine engine; and the low temperature turbine engine can be switched on and off independently of each other. 
     
     
         3 . The power generation system according to  claim 1 , wherein the electro-turbo compounding engine is constructed and arranged to be driven by kinetic and/or thermal energy from the at least one combustion engine. 
     
     
         4 . The power generation system according to  claim 1 , wherein the high temperature turbine engine is constructed and arranged to be driven by flue gas from the at least one combustion engine. 
     
     
         5 . The power generation system according to  claim 4 , further comprising a heat exchanger fluidly connected to the high temperature turbine engine, wherein the flue gas enters the heat exchanger at about 380° C. 
     
     
         6 . The power generation system according to  claim 1 , wherein the low temperature turbine engine is constructed and arranged to be driven by water heated from the at least one combustion engine, the water entering the low temperature turbine engine at about 90° C. to 120° C. 
     
     
         7 . The power generation system according to  claim 1 , wherein the at least one combustion engine comprises two combustion engines. 
     
     
         8 . The power generation system according to  claim 7 , wherein at any one time, at least one of the two or more combustion engines is switched off and at least one of the two combustion engines is switched on. 
     
     
         9 . The power generation system according to  claim 1 , wherein the at least one combustion engine comprises four combustion engines, and at any one time at least one of the four combustion engines is switched on. 
     
     
         10 . The power generation system according to  claim 9 , wherein at any one time three of the combustion engines are switched on and one of the combustion engines is switched off. 
     
     
         11 . The power generation system according to  claim 1 , further comprising at least one electricity generator driven by the at least one combustion engine. 
     
     
         12 . The power generation system according to  claim 11 , wherein an output shaft of the at least one combustion engine is operatively connected to both the electricity generator driven by the at least one combustion engine and one of: an input shaft of the electro-turbo compounding engine, an input shaft of the high temperature turbine engine, and an input shaft of the low temperature turbine engine. 
     
     
         13 . The power generation system according to  claim 11 , wherein an output shaft of the at least one combustion engine is operatively connected to both the electricity generator driven by the at least one combustion engine and an input shaft of the low temperature turbine engine. 
     
     
         14 . The power generation system according to  claim 13 , further comprising a clutch for selectively transmitting drive from the output shaft of the at least one combustion engine to the input shaft of the low temperature turbine engine when an operating temperature of the low temperature turbine engine is reached. 
     
     
         15 . The power generation system according to  claim 1 , further comprising: an electricity generator driven by the electro-turbo compounding engine; an electricity generator driven by the high temperature turbine engine; and an electricity generator driven by the low temperature turbine engine. 
     
     
         16 . The power generation system according to  claim 1 , wherein the emissions unit comprises an accumulator that is constructed and arranged to homogenize flue gases received at the accumulator. 
     
     
         17 . The power generation system according to  claim 1 , wherein the carbon capture unit is constructed and arranged to output food-grade carbon dioxide and/or carbon black. 
     
     
         18 . The power generation system according to  claim 1 , wherein the emissions unit comprises a carbon-oxygen separation unit, the carbon-oxygen separation unit being constructed and arranged to:
 receive below food-grade carbon dioxide from the carbon capture unit; and   provide oxygen and carbon black as an output.   
     
     
         19 . The power generation system according to  claim 1 , wherein the emissions unit comprises a NOx/SOx cleaner. 
     
     
         20 . The power generation system according to  claim 1 , wherein the power generation system is arranged to output electrical power to an electrical grid.